_Rhogeëssa parvula tumida_ H. Allen.--One specimen (55192) from 4 mi. N La Pesca, Tamaulipas, taken by Gerd H. Heinrich, on May 24, 1953, extends the known range of the species on the east coast of Mexico northward 115 miles from 10 kms. WSW Ebano, Veracruz (Dalquest, 1953:58), and also northeastward 115 miles from Santa Maria, Tamaulipas (Goodwin, 1954:6). Another new marginal locality for this species, represented by 39 specimens in our collection, is 10 mi. W, 2 mi. S Piedra, 1200 ft., Tamaulipas. _Baeodon alleni_ (Thomas).--A specimen (68773) from 6 mi. W and 2 mi. N Nejapa, Oaxaca, taken by A. A. Alcorn, on August 6, 1955, extends the known range of this species southeastward 100 miles from Cuicatlán, 590 meters, Oaxaca (Hall, 1955:2). Until recently this species was known from the type locality only. _Lasiurus borealis ornatus_ Hall.--Sixteen specimens (55325-55340) from near Piedra, 1200 to 1400 ft., Tamaulipas (1 from 10 mi. W, 2 mi. S; 1 from 14 mi. W, 3 mi. S; and 14 from 16 mi. W, 3 mi. S Piedra) tend to fill a gap in the known distribution of this species. Previously it was known from Matamoros, Tamaulipas (Miller, 1897:108), to the north and from Bledos, San Luis Potosí (Dalquest, 1953:61), to the south. Assignment to the subspecies _L. b. ornatus_ is tentative and is based primarily on the scanty cover of hair toward the margin of the interfemoral membrane and scanty cover of hair on the ventral surface of the membrane along the forearm. Adequate comparative material of _L. b. ornatus_ from southern Mexico is not available. LITERATURE CITED BAKER, R. H. 1956. The Mammals of Coahuila. Univ. Kansas Publ., Mus. Nat. Hist., 9:125-335, 75 figs. in text, June 15. DALQUEST, W. W. 1953. Mammals of the Mexican State of San Luis Potosí. Louisiana State Univ. Studies, Biol. Sci. Ser., No. 1:1-233, December 28. DAVIS, W. B., and R. J. RUSSELL 1952. Bats of the Mexican state of Morelos. Jour. Mamm., 33:234-239, May 16. DE LA TORRE, L. 1954. Bats from southern Tamaulipas, Mexico. Jour. Mamm., 35:113-116, May 26. 1955. Bats from Guerrero, Jalisco and Oaxaca, Mexico. Fieldiana: Zoology, 37:695-703, 2 plates, June 19. GOODWIN, G. G. 1954. Mammals from Mexico collected by Marian Martin for the American Museum of Natural History. American Mus. Novit., 1689:1-16, November 12. HALL, E. R. 1955. Nuevos murciélagos para la fauna Mexicana. Acta Zool. Mexicana, 1(No. 3):1-2, September 10. MILLER, G. S., JR. 1897. Revision of the North American bats of the family Vespertilionidae. N. Amer. Fauna, 13:1-135, October 16. SANBORN, C. C. 1933. Bats of the genera Anoura and Lonchoglossa. Zool. Ser., Field Mus. Nat. Hist., XX:23-28, December 11. _Transmitted May 12, 1956._ 26-4058